... pressure switch is pressure measurement & control product with intelligent digital display, it is combined the functions of pressure measurement, ... Its output signal is amplified through high accuracy & low temperature swift amplifer, then is input high accuracy A/D ... 24V,1.2Abattery power supply18~32V DCrelative humidity0~80%operating temperature range-20~+70°cselectable rangesMpa, psi,bar, kpa, ...